CompTIA A+ 220-901

Answer: A - If the fan on a desktop computer’s power supply goes bad, the most appropriate way to remedy the situation is by buying and installing a new power supply.

Key Takeaway: Power supplies are tricky components, with a stored charge and a lot of intricate wires. Although they can be fixed, it usually requires a specialist who understands the intricacies of working with a power supply and knows how to do so without being harmed. Since a new power supply can be purchased for relatively cheap, for the purposes of A+ always replace one once it or one of its internal components becomes faulty. This is why the power supply is referred to as a Field Replaceable Unit (FRU).